Spring-wheel.



PATENTED DEC. 25, 1906. W. J. SOHAMPEL & G. H. RASMUSSBN.

SPRING WHEEL.

APPLICATION FILED JUNE 30,1906.

UNITED STATES PATENT osrioa.

SPRING-WHEEL.

Specification of Letters Patent.

'Patented Dec. 25, 1906.

Application filed June so, 1906. Serial No. 324,219.

To all whom it may concern.-

Be it known that we, WILLIAM J. SCHAM- PEL and CHRIS H. RASMUSSEN, citizens of the United 'States," residing at Chicago, in the county of Cook and State of Illinois;have invented new and useful Improvements in Spring-Wheels, of which the following is a specification.

This invention is a spring-wheel suitable for automobiles or other vehicles, the object being to provide a wheel having a resilient.

structure without the use'of pneumatic or similar tires.

. strips are assembled so that the The invention comprises a wheel rovided with a ihub and' a rim or felly and having spokes made of metal with springs inter posed between the inner and 'outer end of said spokes. These spokes especially have some novel features of construction, as shown in theaccompanying drawings, in which-- Figure 1 is a side elevation of a bodying features of the invention. a cross-section of the same. of one of the members which form the combined spoke and spring. Fig. 4 is a modification of the same.

In the drawings, 10 indicates the hub having extending around the middle thereof a broadcircular flange 10*, upon which the spokes are mounted. p 11 is the rim or felly.

The spokes are formed of a series of metal strips, one of which is shown in Fi 3. These ranches of adjacent strips when joined together form the spokes and the springs.

doubled or bent to form two branches 12, united at the inner ends by a segmental portion-12 of pro er curvature to fit a ainst the periphery of t e-rim 10 of the hu Each of said branches also has a semi-elliptical curve or bend 12 between its ends, and the ,branch'terminates at the outer end in a raspoke members are arran around the wheel, and the a jacent branches The ends 12 wheel em- Fig. 2 is- Fig. 3 is a view. and. when assembled produces cured to the hub each branch having Each strip is di'al portion 12 and an inturned or offset portion 12 at a proper angle or curvature to fit against-the ed in a series thereof are secured together by rivets 13, extending through theportions are fastened to the rim by bolts 13, and the inner connectin portions 12 are fastened to the hubby bo ts 13". The assembly of the spoke members'produc'es an elliptical spring In each spoke, formed by the bent portions 12 and these springs give the whee stead of the rivets 13 other means may be 4 used to fasten the sectionstogether.

The modification shown In Fig. 4-instead of having two branches, as shown in the other figures, has only one branch, being, in

.efiect, a half of the double-spring sections shown in the other figures. This modified form is, however, assembled the sameway a wheel of similar construction.

' We claim 12 and 12.

its resilience or yielding quality. In-.

Inner side of the rim. The

A spring-wheel comprising a hub, arim,

and spoke-sections 'therebetween, each section consistinglof ametal stri bent to form two radial branches connecte at their inner ends by a segmental portion 12 which is seat its to the outerend an offset portion 12 secure rim, 12 the adjacent v sections being secured together.

In testimony whereof we have signed our names to this specification in the presence of witnesses.

LLIAM J. SCHAMPEL. CHRIS j-H. RASMUSSEN.

Witnesses: r

SIGNA FELTSKOG, H. G. BATOHELOR.

two subscribin and also having a semi-elliptical bend 

